Bearing substances of different



(No Model.) 2 Sheets-Sheet 1.

O. B. PEOK. I APPARATUS FOR SEPARATING PARTICLES OF METALLIC OR MINERALBEARING SUBSTANCES 0P DIFFERENT SPECIFIC GRAVITY. No. 444,613. PatentedJan. 13,1891.

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APPARATUS FOR SEPARATING-IARTICLES OF METALLIC 0R MINERAL BEARINGSUBSTANCES OI DIFFERENT SPECIFIC GRAVITY.

No. 444,613. Patented M11513, 1891.

UNITED STATES PATENT OFFICE.

ORRIN B. PECILOF CHICAGO, ILLINOIS, ASSIGNOR TO MELINDA PECK, OF SAMEPLACE.

APPARATUS FOR SEPARATING PARTICLES OF METALLIC 0R MINERAL-BEARINGSUBSTANCES OF DIFFERENT SPECIFIC GRAVITY.

SPECIFICATION forming part of Letters Patent No. 444,613, dated January13, 1891.

Application filed May 10, 1889.

To-ctZZ whom it may concern:

Be it known that I, ORRIN B. PEOK, a citizen of the United States,residing at Chicago, Illinois, have invented certain new and usefulImprovements in Apparatus for Separating Particles of Metallic orMineral-Bearing Substances of Different Degrees of Specific Gravity, ofwhich the following is a specification.

The object of my invention is to make an apparatus for use in separatingthe particles of different metallic or metal-bearing substances eitherfrom each other or from the materials or ores with which they may becombined where the particles are of different specific gravities andwithout first reducing such substances to a molten condition; and myinvention consists in the features and details of constructionhereinafter described and claimed. g

In the drawings, Figure 1 shows a transverse vertical section of myimproved apparatus, and Fig. 2 shows a plan view of the same.

In making the receiving-vessel as I prefer to make it the walls flare orslant outwardly from the bottom toward the top. The top is provided witha rim or cover which extends out a short distance from the sides, so asto catch the material under the same. The balance of the top of thereceiving-vessel is left open.

The material intended to be treated in the receiving-vessel consists ofores or metalbearing substances reduced to a fine or powdery condition,so as to consist of very minute particles.

To prevent the material treated from packing or caking against the sidesof the receiving-vessel, I provide a stirrer or agitator B, having anarm C, preferably screw-threaded and passing through suitable bearingsand through the screw-threaded hub of a sprocketwheel D, which isintended to be rotated by a sprocket-chain or other suitable means. Bythe rotation of the sprocket-wheel slowly in one direction or the otherthe agitator or stirrer can be adjusted in or out from or toward thewalls of the receiving-vessel. I prefer also to provide the agitator orstirrer with Serial No. 310,274. (No model.)

small pins or fingers I), screwed into its side next to the walls of thereceiving-vessel. Where they are screwed in they may be easily removedas they become Worn and new ones inserted in their places. These pins orfingers extending toward the walls of the receiving-vessel serve to stirand agitate the material as it settles against the same, and thuskeep itconstantly in a condition adapted to the movement of the heavierparticles through the material toward the outside as driven bycentrifugal force. By adjusting the parts in a proper way the fingers bmay be gradually carried out from the walls or sides of thereceiving-vessel, permitting an accumulating thickness of the heavierparticles of the material treated to be retained or held by centrifugalforce against the sides or walls of the receiving-vessel.

In order to remove the lighter particles of the material treated,instead of permitting them to fly off at a tangent at the top, I preferto employ a cutter or scoop E, adjustable with the agitator or stirrertoward or from the walls of the receiving-vessel, so that as the fingersof the stirrer permit a thicker bed of material to settle against thesides of the receiving-vessel the cutter or scoop will also permit thesame by moving away from the walls at the same rate that the stirrer oragitator moves. To secure this end I prefer to arrange the cutter orscoop on an arm F of the agitator or stirrer, so that it will beadjustable by the same means that are used to adjust the agitator orstirrer. Of course the cutter or scoop might be adjusted on independentmeans, although I prefer to use one means of adjustment for both. Theoperative end of the cutter or scoop is arranged at an angle with thesides of the receiving-vessel and opens against the direction ofrotation, so that as the material is carried around with thereceiving-vessel the particles revolving at the proper distance from thesides will be caught by the cutter or scoop and carried through the sameto be deposited in an annular trough G or any other suitable receptaclethat may be provided.

As in some cases it is desirable to wash or dilute the material treatedwith water while in the revolving receiving-vessel, I provide a pipe H,that is connected with a tank or other water-supply, so that by openinga cock water may be admitted into the receiving-vessel. I prefer todirect the end of the pipe II toward one of the sides of thereceiving-vessel, so that as the water rushes out of the same it willstrike against the side of the vessel at an angle, so as to exert astirring or agitating effect, as well as to dilute and wash the materialtreated.

What I regard as new, and desire to secure by Letters Patent, is

In an apparatus for separating particles of dilferent degrees ofspecific gravity contained in metallic or metal-bearing substances, thecombination of a revoluble receiving-vessel adapted to receive thematerial to be treated ORRIN B. PEGK.

IVitnesses:

THOMAS A. BANNING, SAMUEL E. I'IIBBEN.

